KwiKool KPHP Series Operation Manual page 16

Fault
System trips breaker on
start up
System starts up and
operates in the chosen
mode but the condenser
discharge air exhaust fan
stops and starts in cool
mode or in heat mode the
supply air fan starts and
stops.
Display shows 32 and unit
will not turn on cooling.
Supply air flow is limited, and
or water is dripping from the
front of the system
Condensate is not pumping.
Evaporator coil is freezing
Possible Cause
Incoming power is incorrect,
breaker is undersized or
faulty, and/or extension
power cable is too long and
or undersized.
Normal operating condition
especially in low tempera-
tures.
No connection of tempera-
ture sensor to Micropro-
cessor. Temperature
Sensor malfunction.
Supply or return air is
blocked or restricted, and or
the evaporator coil is
freezing.
Water is below pumping
level, external line
restricted, line installed with
too high of lift.
Low or restricted air flow.
Undersized capacity, unit
constantly on, unable to
achieve set point. Low
return air temperature out
of factory specifications.
Evaporator door open,
mechanical system
malfunction.
Possible Solution
Verify the circuit and power
cable is within the systems
specifications, consult with
your electrician or call
1-800-KwiKool for
guidance.
No action required, see
sections IV C. 2 & 3
Note: To avoid excessive
fan cycling, return air must
not be below the specifica-
tions of your KwiKool
system.
Call 1-800-KwiKool for
instructions.
Verify that supply and
return air are not blocked
and duct work is installed
to specification, remove or
add duct as needed, check
air filter for blockage.
Reservoir fills, and then
pumps. Check for line
crimping or restrictions and
proper line run height. Refer
to the user guide Section 5:
Built in Safeguards.
Direct supply return air to
area of highest heat load,
check for blocked air flow
from the supply air, replace
air filters, adjust set point to
allow the unit to cycle, add
another KwiKool system or
larger capacity model, close
evaporator compartment
door. Install service gauges
to view pressures.
Call 1-800-KwiKool
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